Die for rolling axes



o UNITED 7 STATES PATENT OFFICE.

LOUIS HAMMOND, OE NEw HAVEN, CONNECTICUT.

D|E FOR ROLLING AxEs.

SPECIFICATION forming part of Letters Patent No. 278,544, dated May 29, 1883.

Application filed February 19, 1883. (No model.)

To all whom it may concern:

Beitknown that I, LOUIS HAMMOND, of New Haven, in the county of New Haven and State of Connccticuhave invented a new`lmprove a full, clear, and exact description of the same,

and which` said drawings constitute part of this specification, and represent, in

Figure l, a transverse section, the dies as commencing the rolling operation upon the sides ofthe aX; Fig. 2, the same, showing the completion ot' that opera-tion; Fig. 3,-a transverse section of the dies a b midway of their length; Fig. 4, a transverse section of the rolls and dies forshaping the ax transversely, and in the position of commencing the operation;

Fig. 5, a transverse section of the dies cf near theirnishing ends ;`Fig. 6, a transverse section of the rolls, showing the dies as just iinishing their work upon the blank.

This invention relates to an improvement in diesfor rolling or shapingaxes; audit consists in dies, as hereinafter described, arranged in rolls, whereby the blank introduced e between the dies at the proper time is broughtito the required shape. p

VYA represents the lower and B the upper of a pair of rolls geared together and workingin the usual manner of rolls for similar purposes. At corresponding points in the surface of each of the rolls, respectively, is a die, a b. These dies are secured to their respective rolls, and sothatthe two advancing ends d of the two dies, when they stand directlyover each other, will grasp the blank introduced between them, as seen in Fig. l. From that point the shape of the'dies is the reverse of the two faces or sides of the ax, as seen in transverse section, Fig. 3, except that they are curved to correspond to the rolls, and so that after the blank has been grasped and the rolls revolving, as indicated by arrows, the blank introduced will .be forced backward with the rolls, the metal squeezed between the two dies and brought into shape, as seen in Fig. 2. After thus rolling and shaping the two sides, a transverse shaping is required, and this is performed by similar rolls, U D, Fig. 4, having in their faces, respectively, dies e f, the shape of which corresponds, respectively, to the front and back ot' the ax, as seen in transverse section, Fig. 5.

ishing axes is saved, and moreperfect work is performed, because when once the dies are right all the axes rolledby them willibe of that exact and proper shape. Hence there will be a greater uniformity in the axes than can be produced by the usual methods of forging.

The herein described dies forv rolling axbits, consisting of the series of dies o b and 

